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authorMikaël Urankar <mikael.urankar@gmail.com>2023-08-13 10:41:48 +0200
committerWarner Losh <imp@bsdimp.com>2023-08-28 12:16:18 -0600
commit292bfd0f512aa71fcc8f7e2f6ce2aa40a5a825ef (patch)
treee8202727caad71ac38da09b13af7c702897229fa /bsd-user/freebsd
parent292f00c05bfa62a020eee5eb1d8c0983e8483b33 (diff)
downloadfocaccia-qemu-292bfd0f512aa71fcc8f7e2f6ce2aa40a5a825ef.tar.gz
focaccia-qemu-292bfd0f512aa71fcc8f7e2f6ce2aa40a5a825ef.zip
bsd-user: Implement do_freebsd_realpathat syscall
Signed-off-by: Mikaël Urankar <mikael.urankar@gmail.com>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Diffstat (limited to 'bsd-user/freebsd')
-rw-r--r--bsd-user/freebsd/os-stat.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/bsd-user/freebsd/os-stat.h b/bsd-user/freebsd/os-stat.h
index e31b2aab9e..b20e270774 100644
--- a/bsd-user/freebsd/os-stat.h
+++ b/bsd-user/freebsd/os-stat.h
@@ -634,4 +634,30 @@ static inline abi_long do_freebsd_fcntl(abi_long arg1, abi_long arg2,
     return ret;
 }
 
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 1300080
+extern int __realpathat(int fd, const char *path, char *buf, size_t size,
+        int flags);
+/* https://svnweb.freebsd.org/base?view=revision&revision=358172 */
+/* no man page */
+static inline abi_long do_freebsd_realpathat(abi_long arg1, abi_long arg2,
+        abi_long arg3, abi_long arg4, abi_long arg5)
+{
+    abi_long ret;
+    void *p, *b;
+
+    LOCK_PATH(p, arg2);
+    b = lock_user(VERIFY_WRITE, arg3, arg4, 0);
+    if (b == NULL) {
+        UNLOCK_PATH(p, arg2);
+        return -TARGET_EFAULT;
+    }
+
+    ret = get_errno(__realpathat(arg1, p, b, arg4, arg5));
+    UNLOCK_PATH(p, arg2);
+    unlock_user(b, arg3, ret);
+
+    return ret;
+}
+#endif
+
 #endif /* BSD_USER_FREEBSD_OS_STAT_H */